I speak after the manner of men because of the weakness of your flesh: for as you have yielded your members servants to uncleanness and to iniquity unto iniquity; even so now yield your members servants to righteousness unto holiness.
All Commentaries on Romans 6:19 Go To Romans 6
John Chrysostom
AD 407
Paul says that he is speaking in human terms in order to show that he is not making any exorbitant demand, nor even as much as might be expected from someone who enjoyed so great a gift, but rather a moderate and light request…. The two masters are very different from each other, but even so, Paul is asking for no more than the same amount of servitude. People really ought to give much more to the service of righteousness, since righteousness is obviously so much bigger and better. But because of their weakness, which he does not ascribe to their free will or to their spirit but to their flesh, Paul is not making any greater demands on them.